This paper presents a universal and integrated methodology for the component-based design of web applications. Modelling methods for design areas relevant in the web context are explicated which are enhancing the concepts of existing design methods by aspects of metadata modelling as well as of view and navigation modelling. Core of the approach is the application of metamodels and modelling te...

With the gradual maturating of ubiquitous computing and the rapid advances in mobile devices and wireless communication, indoor Location Based Services have gained increasing interests as an important application of indoor ubiquitous computing. In this paper, we propose an evaluation framework which combines the key aspects of indoor navigation for investigating mobile indoor navigation systems...

in this paper, the results of design and implementation of the subsystems for generating loran pulse are proposed based on method of carrier’s pulse width change. in order to generate the desired pulse, firstly a pwm signal generated and then it is applied to a class-d switching amplifier. the results show that by generating appropriate pulses in digital fpga subsystem for application in switch...

Although satellite navigation, mainly based on the U.S. GPS, plays an important role in positioning and navigation tasks and although there are efforts to establish new satellite-based navigation systems like the European Galileo, the reliability and availability of these systems cannot satisfy all requirements of today’s navigation. Therefore, the navigation system of the future will likely co...

This paper proposes a novel methodology for decentralized multi-robot navigation with multiple arbitrarily shaped obstacles in 2-dimensional environments. The proposed methodology is based on the novel concepts of the Navigation Transformation and the Harmonic Function based Navigation Functions. A version of the Navigation Transformation the Multi-Agent Navigation Transformation is proposed in...

BACKGROUND Although surgical navigation reduces the rate of malpositioned acetabular cups in total hip arthroplasty (THA), its use has not been widely adopted. As a result of our perceived need for simple and efficient methods of navigation, we developed a mechanical navigation device for acetabular cup orientation. QUESTIONS/PURPOSES We assessed accuracy of cup orientation (mean error of cup...

The paper deals to design for skilled navigation in mobile robotics usually requires solving two problems pertaining to the knowledge of the position of the robot, and to a motion control strategy When no prior knowledge of the environment is available, the problem becomes even more challenging since the robot has to build a map of its surroundings as it moves. These three tasks ought to be sol...

In order to solve the problems of Image pretreatment and the extraction of navigation line on agricultural machinery visual navigation, a route navigating system based on improved HOUGH transform is brought forward. First, extract the set of points from the original image based on the threshold segmentation and edge detection. Second, an improved HOUGH transform algorithm is used on detecting t...